Listed below are all of the LoC, ACI, and other official documentation entries we've found that pertain to Infantry Equipment, Pattern 1914. If anyone knows of any others, please send copies to KW for inclusion in this section.
LoC 16977 Infantry Equipment, Pattern 1914 - New Patterns. 30th Aug 1914
Introduces Infantry Equipment, Pattern 1914.
LoC 17177 Infantry Equipment, Pattern 1914 - New Patterns. 21st Jan 1915 / 8th Mar 1915
Adds Pistol case, Pistol cartridge case, and Dirk loop.
LoC 17219 Infantry Equipment, Pattern 1914 - Modification of Patterns. 31st Dec 1914 / 30th Mar 1915
Various modifications to designs.
Adds "extra-large" size Waist belt.
Changes all tabs and chapes on Haversacks and Packs to web.
LoC No. 17660 Web equipment, pattern 1908 - Covers, mess tin. dated 31st October 1915
Extends the use of the Patt. '08 Mess tin cover to Patt. '14
LoC 17698 Infantry Equipment, Pattern 1914 - Attachments, Brace. 24th December 1915
Adds Brace attachments.
Changes the Cartridge pouches from one to two straps.
ACI A9. 5th January 1921
Removes Pattern 1914 from service with regular units.
ACI A349. 31st May 1921
Approves use of Pattern 1914 Bayonet frogs.
ACI A2322. 20th January 1927
Adds Linesman's Pouches.
Paul Hannon provided this excerpt from Chapter V, Section 6. It lists the equipment and accoutrements authorised for a Machine Gun Battalion at Battalion HQ, Company HQ, and each Section.
LoC 16978 Slings, rifle, pattern 1914 - New Pattern. 6th September 1914.
Introduces Pattern 1914 Sling.
LoC 17179 Slings, rifle, pattern 1914 - Colour. 30th March 1915.
Changes colour from Service dress to London brown.